[Eeglablist] difficulties with event code summary from erplab?

[Akshay Maggu]

Hi Kaare,

I tried to replicate your error. However, I am getting the correct listing
(Please see below). I am using Matlab 2013a. Try resetting your erplab
working memory to see if that helps.
 #  Non-editable header begin
--------------------------------------------------------------------------------

#

#  data format...............: continuous

#  setname...................: BDF file_elist_bins

#  filename..................: none_specified

#  filepath..................: none_specified

#  nchan.....................: 143

#  pnts......................: 468480

#  srate.....................: 512

#  nevents...................: 601

#  generated by (bdf)........: /Users/XXX/Desktop/erplab_binlister.txt

#  generated by (set)........: BDF file_elist_bins

#  reported in ..............:

#  prog Version..............: 4.0.2.3

#  creation date.............: 16-Sep-2014 11:41:07

#  user Account..............: Akshay

#

#  Non-editable header end
--------------------------------------------------------------------------------



    bin 1,  # 480,


    bin 2,  # 120,


    bin 3,  # 1,








# item   bepoch   ecode             label         onset           diff
  dura   b_flags    a_flags    enable        bin

#                                                 (sec)           (msec)
  (msec)    (binary)   (binary)





1       0         65024               ""          0.8906          0.00
0.0     00000000     00000000      1    [      3]

2       0         65152               ""          3.0898       2199.22
0.0     00000000     00000000      1    [      1]

3       0         65152               ""          4.5898       1500.00
0.0     00000000     00000000      1    [      1]

4       0         65216               ""          6.0898       1500.00
0.0     00000000     00000000      1    [      2]

5       0         65152               ""          7.5898       1500.00
0.0     00000000     00000000      1    [      1]

6       0         65152               ""          9.0898       1500.00
0.0     00000000     00000000      1    [      1]

7       0         65152               ""         10.5898       1500.00
0.0     00000000     00000000      1    [      1]

8       0         65152               ""         12.0898       1500.00
0.0     00000000     00000000      1    [      1]


Best,

Akshay

On Thu, Sep 11, 2014 at 8:45 PM, Kaare Mikkelsen <mikkelsen.kaare at gmail.com>
wrote:

> Dear EEGLAB mailinglist:
>
> (I am presently learning to use eeglab to analyse MMN-datasets, meaning
> that my question does partly relate to the erplab extension. I hope that
> this is acceptable, or that an alternative eeglab-exclusive solution
> exists.)
>
> As a step towards familiarising myself with eeglab, I am attempting to
> make my way through the tutorial for spm/eeg, using eeglab/erplab. To this
> end I am using the garrido dataset obtainable from
> http://www.fil.ion.ucl.ac.uk/spm/data/eeg_mmn/. The data seems to load
> fine into eeglab, but for some reason I am running into obstacles when
> reading the event information?
>
> after having created the event list, the summary of event codes (outputted
> by erplab) is
>
> Type 65024 appears   1 times
> Type 65152 appears   1 times
> Type 65216 appears 480 times
>
> However, the eeglab window informs me that there are in fact 601 events.
> this fits very well with the spm tutorial, which says that the rare
> stimulus occurs 120 times (and not just 1). upon browsing the event
> details, either through the generated elist.txt or using edit -> event
> values, I see that there are indeed much more than 1 occurrence of code
> "65152". Does anyone know what might be going wrong? clearly the events are
> there, but eeglab persists in claiming that event "65152" only happens
> once. An excerpt from the elist.txt looks like:
>
> # item bepoch  ecode            label      onset          diff     dura
> b_flags   a_flags  enable    bin
>
> 1     0       65024              ""      0.8906      0.00    0.0
>  00000000     00000000   1 [       ]
> 2     0       65152            rare      3.0898   2199.22    0.0
>  00000000     00000000   1 [      1]
> 3     0       65152            rare      4.5898   1500.00    0.0
>  00000000     00000000   1 [      1]
> 4     0       65216            freq      6.0898   1500.00    0.0
>  00000000     00000000   1 [      2]
> 5     0       65152            rare      7.5898   1500.00    0.0
>  00000000     00000000   1 [      1]
> 6     0       65152            rare      9.0898   1500.00    0.0
>  00000000     00000000   1 [      1]
> 7     0       65152            rare     10.5898   1500.00    0.0
>  00000000     00000000   1 [      1]
> 8     0       65152            rare     12.0898   1500.00    0.0
>  00000000     00000000   1 [      1]
>
> (the labels are my doing, using the advanced "create eventlist" interface)
>
> I hope someone can help clear this up.
>
> Best regards
> Kaare Mikkelsen
>
> --------------------------------------------------------------------
> Kaare Mikkelsen, Dr. Phys.
> Department of Engineering
> Aarhus University
> --------------------------------------------------------------------
>
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-- 
Akshay Raj Maggu,
PhD student,
Laboratory for Language, Learning and the Brain,
Division of Linguistics and Modern Languages,
Chinese University of Hong Kong,
Hong Kong.
webpage: http://www.cuhk.edu.hk/lin/new/people/students/maggu/
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